JPH0228383Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a beverage cooling dispensing machine that cools beverages by submerging the evaporation pipe of the refrigeration mechanism and the beverage cooling pipe in a liquid tank storing a cooling liquid such as water. This invention relates to a beverage cooling and dispensing machine that prevents the beverage in the beverage cooling tube from freezing due to ice generated around the evaporation tube.

In such a beverage cooling dispensing machine, it is a problem that must be avoided at all costs, such as the beverage cooling pipe being surrounded by ice formed in the evaporation pipe and the beverage inside being supercooled and frozen. For this reason, conventionally, the evaporation pipe is placed at the top and the beverage cooling pipe at the bottom, or vice versa, and when the beverage cooling pipe is screwed into the liquid tank in a coiled manner, the inlet to the liquid tank and The outlet piping was arranged so that it did not come into contact with the evaporation tube and ice. This poses a major constraint on the structure of the pouring machine, resulting in a loss of flexibility and an unnecessarily large size. Another proposed configuration is to arrange the beverage cooling pipe and evaporation pipe in a concentric coil shape, with the beverage cooling pipe on the outside and the evaporation pipe on the inside, but in this case, sufficient ice storage cannot be achieved. It had drawbacks.

The purpose of the present invention is to eliminate such drawbacks, and the purpose is to prevent the beverage from freezing in the beverage cooling pipe, and to create a highly efficient beverage cooling dispensing machine that is compact and can store sufficient ice without having to use a large structure. Our goal is to provide the following.

The present invention will be explained below with reference to FIGS. 1 and 2 showing one embodiment. A cooling liquid 3 such as ice is stored in a liquid tank 2 covered with a heat insulating material 1, and an evaporation pipe 5 connected to a refrigeration mechanism 4 is arranged in a coil shape outside the cooling liquid 3. Inside, a beverage cooling tube 6 for passing the beverage is arranged in a coiled manner, and both tubes 5 and 6 are arranged concentrically and vertically. The base end of the beverage cooling pipe 6 is connected to a beverage supply source (not shown) via a pot 7, and the tip thereof is connected to a pouring pot 8.

Further, since a blade 10 fixed to the rotating shaft of the electric motor 9 is arranged in the center of the beverage cooling pipe 6,
The cooling liquid 3 circulates inside the liquid tank 2 by flowing from the top to the bottom inside the beverage cooling pipe 6 and downward outside the beverage cooling pipe. The coolant 3 cooled in the evaporation tube 5 in this way effectively cools the beverage in the beverage cooling tube 6.

A shaded line 11 on the outer periphery of the evaporation tube 5 is a generated ice layer, and an ice storage control element 12 controls the refrigeration mechanism 4 to store a certain amount of ice. The beverage that flows through the beverage cooling pipe 6 and is poured out via the pouring pot 8 exchanges heat with the cooling liquid 3, and as a result, the ice layer 11 is stored by the heated cooling liquid 3.
The amount of ice stored in the ice layer 11 will depend on the amount of ice stored in the ice layer 11. In order to increase the amount of ice stored in the ice layer 11, it is desirable to install the evaporation tube 5 on the wall side of the liquid tank 2 and the beverage cooling tube 6 inside it, as shown in FIG. Generally, such a beverage cooling and dispensing machine is installed on a table top such as a counter, so the overall height is limited by itself, and the evaporation pipe 5 is provided close to the bottom of the liquid tank 2. For this reason, the beverage cooling pipe 6 is installed to penetrate between the coil pitches of the evaporation pipe 5, and because it penetrates the ice layer 11, freezing of the beverage as described above becomes a problem.

The present invention prevents the beverage from freezing inside the beverage cooling pipe 6, and its details will be explained with reference to FIG.
A hollow cylinder 16 having heat insulating properties is liquid-tightly fixed to the wall surface of the liquid tank 2 on which the pouring pot 8 is placed. A mounting shaft 18 connected to the beverage cooling pipe 6 and having a flow path 17 is inserted into the inner hole of the hollow cylinder 16 . The mounting shaft 18 has a spout 8 on the left end and a mounting nut 23.
The right end is fixed to the hollow cylinder 16 with a nut 19 and connected to the beverage cooling pipe 6 with a union nut 20.
Further, since a sealing member 21 such as an O-ring is provided near the right end of the mounting shaft 18, an air layer 22 formed between the hollow cylinder 16 and the narrow part of the mounting shaft 18 on the left side of the sealing member 21 is provided. The liquid is sealed from the coolant 3. Note that the air within the air layer 22 may be in communication with the outside air or may be airtight.

In the above explanation, the explanation was given on the outlet side of the beverage cooling pipe 6, that is, the side connected to the pouring pot 8, but this configuration is naturally applicable to the inlet side of the beverage cooling pipe 6, that is, the side connected to the pouring pot 7. In this case, one side of the mounting shaft is connected to a conduit having a pot 7 leading to the outside of the liquid tank 2, and the other side is connected to a beverage cooling pipe 6. Furthermore, although the explanation has been made with an air layer 22 provided between the hollow tube 16 and the mounting shaft 18, this air layer 22 is provided between the hollow tube 16 and the mounting shaft 18.
It is not necessarily necessary if the insulation performance is good.

Next, the operation of the pouring machine according to the present invention will be explained.
When the refrigeration mechanism 4 is operated, ice is gradually generated around the evaporator tube 5, and finally the hollow tube 16 is covered with the ice layer 11. Here, since the mounting shaft 18 connected to the beverage cooling pipe 6 is located through the air layer 22 from the insulating hollow cylinder 16, there is absolutely no possibility that the beverage inside will freeze.

As mentioned above, the beverage cooling dispenser according to the present invention has a mounting shaft placed inside a hollow tube with heat insulation in the portion that exits the beverage cooling pipe, and a pouring cup or liquid tank 2 at one end of the mounting shaft. A conduit leading to the outside of the container was connected to the beverage cooling pipe 6, and the other end was connected to a beverage cooling pipe 6. Therefore, even if the hollow cylinder penetrates the ice layer 11 that has formed around the evaporator tube, the ice below 0°C faces the mounting shaft through the well-insulated hollow cylinder. Freezing of beverages inside is reliably prevented. Furthermore, since the evaporation tube stores ice all the way to the bottom of the liquid tank, the present invention has many advantages, such as a large amount of ice storage and effective cooling of beverages.

[Brief explanation of drawings]

The figure shows one embodiment of the present invention, and FIG. 1 is a cross-sectional view.
FIG. 2 is an enlarged sectional view around the hollow cylinder. 2...Liquid tank, 3...Cooling liquid, 4...Freezing mechanism,
5... Evaporation pipe, 6... Beverage cooling pipe, 8... Pour pot, 11... Ice layer, 16... Hollow cylinder, 18...
Mounting shaft, 22...air layer.

Claims (1)

[Claims for Utility Model Registration] 1. An evaporation pipe connected to a refrigeration mechanism is submerged in a liquid tank containing a cooling liquid such as water, with a beverage cooling pipe for passing beverages inside, and the cooling liquid is poured into the liquid tank. In the beverage cooling dispensing machine that generates an ice layer around the evaporation pipe while circulating the liquid, a hollow cylinder with heat insulation is provided in the liquid tank in a portion where the beverage cooling pipe penetrates the ice layer. A mounting shaft that is fixedly fixed and has a flow path is inserted into the inner hole of the hollow cylinder, and one end of this mounting shaft is connected to a conduit leading to the outside of the pouring tank or the liquid tank, and the other end is made hollow. A beverage cooling dispensing machine, characterized in that the beverage cooling pipe is fixed to a cylinder in a liquid-tight manner and is further connected to the beverage cooling pipe. 2. The beverage cooling dispensing machine according to claim 1, which is characterized in that an air layer is provided between the hollow shaft and the mounting shaft.